Whirlpool 4392027 Switch for Microwave Works with the following models: Whirlpool GT4175SPB1, Whirlpool GT4175SPB2, Whirlpool GT4175SPQ1 Whirlpool GT4175SPS1, Whirlpool GT4175SPS2, Whirlpool GT4175SPQ2 Whirlpool GT4175SPT1, Whirlpool GT4175SPT2 Whirlpool MT4155SPB, Whirlpool MT4155SPQ Genuine replacement part